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What you see here is a 1973 Topps wax box — 24 packs of 10 cards — with cards inside just as they were wrapped in wax paper more than 40 years ago.

They’ll all see the light of day soon as part of an upcoming BlowoutTV group break, which will give collectors a shot at high-grade copies of Hall of Famer Mike Schmidt‘s Rookie Card along with RCs of Rich “Goose” Gossage, Dwight Evans, Davey Lopes and Bob Boone. (Oh, and keep reading to see how you can get in on a free spot in the break …)

And then, of course, there are cards of Hall of Famers and notables such as Hank Aaron, Nolan Ryan, Brooks Robinson, Roberto Clemente, Al Kaline, Willie Mays, Pete Rose, Thurman Munson, Reggie Jackson, Harmon Killebrew, Joe Morgan and many more. Perfect specimens aren’t a given with the printing, cutting and packaging of the past, but a box like this one can yield plenty of high-dollar cards in PSA 9 and 10 form. (And some strong cards in lesser grades.)

But the real power in this one beyond the Hall of Famers? The potential for PSA 10 commons — cards that are often overlooked raw but can command insane amounts when PSA Registry collectors chase a set in high grade. How about $739.76 for a PSA 10 Bobby Murcer?

Examining the population reports for PSA and BVG shows that there aren’t that many high-grade copies of key cards to go around. Of the 150,000-plus cards from the set graded by PSA, just 2,463 received a PSA 10 and 41,139 got a PSA 9. The most-often-awarded grade is PSA 8 with more than 74,000 copies — of all cards — getting that mark.

The Schmidt, for example, has just 10 PSA 10 copies out there. In May 2012, SCP Auctions sold one for $15,766 and a second one reportedly sold for $20,000 back in 2004. ARyan sold for $28,644 in 2009 and another for $19,120 last year, while a Clemente 10 sold for $12,083 last year, while an Aaron went for $10,755.

For BVG, the pop report is even tougher with just two BVG 10 cards out of a total of just 5,294 graded from the set. One of those perfect cards is a Sparky Anderson, while the other is a Lou Piniella. The Schmidt dominates the pop report here with 1,213 copies of that card slabbed alone — with the highest mark being a BVG 9. That’s been hit 17 times, while an 8.5 has happened 25 times. The most-plentiful grade is a BVG 7 — and it’s safe to say that many of those probably didn’t come out of fresh packs.

So, about that group break …

How it will work for BlowoutTV (all the info is here) is you’ll randomly be assigned a card number from the set for each spot purchased in the break. If you get 10 copies of that card in the box, they’re all yours. If you get one copy of that card in the box it’s all yours. If your card is not found, you will be awarded a random card from a different release. The box comes inspected and authenticated from Baseball Card Exchange, the top dealer of vintage wax.